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Two green DDR4 SO-DIMM sticks side by side

G.SKILL

G.SKILL Ripjaws F4-2666C19D-16GRS 16GB (2×8GB) DDR4 2666 CL19 laptop RAM

SKU CH-JQV1-17J93 MPN F4-2666C19D-16GRS

16 GB dual-channel DDR4 SO-DIMM kit running at 2666 MT/s with CL19 timings at 1.2 V

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Memory timings19-19-19-43
  • Rated voltage1.2 V
  • Buffer typeUnbuffered

Capacity 16GB (2 x 8GB)

Speed DDR4 2666 (PC4 21300)

CAS Latency CL19

  • Dual-channel kit doubles bandwidth with two matched 8 GB modules
  • DDR4 2666 speed delivers PC4-21300 data rates for responsive multitasking
  • CL19 19-19-19-43 timings balance latency and stability
  • 20 V operation cuts power draw and heat in thin laptops
  • 260-pin SO-DIMM form factor fits standard DDR4 laptop slots

Ripjaws DDR4 SO-DIMM kit

This Ripjaws DDR4 SO-DIMM kit provides 16GB across two 8GB modules running at 2666 MT/s with CL19 timings. It targets notebook owners who want a straightforward dual-channel upgrade for gaming or workstation workloads. The unbuffered, non-ECC design fits standard 260-pin slots.

Low-voltage thermal profile

Operating at 1.2V, the modules draw less power than standard DDR4 and generate less heat inside a cramped chassis. No heat spreader is fitted, so the slim profile clears tight laptop bays while keeping thermals manageable under sustained loads. Fan noise and power draw remain at stock platform levels.

XMP 2.0 ready profile

The kit includes an XMP 2.0 profile that sets 2666 MT/s, 1.20V and 19-19-19-43 timings with a single BIOS toggle. No extra software or cables are bundled. Buyers who need ECC, registered DIMMs or speeds above 2666 MT/s should look elsewhere.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 83% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB (2 × 8 GB)
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $1.44 per GB
Cheaper than about 99% of the 1,886 comparable items (median $5.94 per GB).

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Specifications

Product
Brand nameG.SKILL
Product lineRipjaws Series
Model nameF4-2666C19D-16GRS
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
Memory timings19-19-19-43
ECC supportNo
Buffer typeUnbuffered
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.05 kg
Package size152 × 132 × 5 mm

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Questions about this item

How do I install these 260-Pin DDR4 SO-DIMM modules and which slot order ensures dual-channel operation?

Power off the laptop, open the memory compartment, insert each 8 GB stick at an angle into the two SO-DIMM slots until the clips lock — most systems enable dual-channel automatically when both slots are populated.

What upkeep will this 1.20 V Ripjaws kit need over its lifetime?

No scheduled maintenance is required; keep the laptop vents clear so the modules stay cool and reseat the sticks only if you encounter boot errors after a major hardware change.

At what point does the CL19 19-19-19-43 timing become the bottleneck during heavy workloads?

Under sustained loads the fixed CAS 19 latency limits how quickly new data rows can be opened, so bandwidth scales with frequency but response time plateaus at the rated timings.

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